Doorlock



July 26f 1932 F.; D. HADgsTY 1,868,746

` I DoQRiLoX v l Filedfot. 20; 195o IN VENT 0R the parts of theinvention.

Patented July 26, 1932 Unirse STATES FRANCIsD. HAB-DESTY, or FERNDALE,Mrcnrelu;

DooRLooK A Application led October 20, 1930. Serial No. 489,728.y

10, ily understood that rotation of the handle and therefore of itssquared shaft, causes rotation of the rocker arm and correspondinglysliding retraction of the bolt.

An object of this .invention is a push button control for locks of thecharacter above described and adapted to be substituted for the handlecommonly provided, the control including a crank having a squared shaftfitting in the squared hole of the rocker arm in place of the squaredshaft of the handle,

and links connected to the rocker arm and to the push button plunger andadapted to be moved by the latter to cause rotationof the rocker arm andsliding retraction of the boa.

t is contemplated, tho not deemed necessary, to mount the push buttonplunger in the hole in the door formerly occupied by the shaft of thehandle. In this manner superfluous alteration of the doors heretoforeprovided will be eliminated, the only changes being in the removal ofthe handle and its squared shaft and the substitution of the push buttoncontrol means forming the invention.

It is also contemplated to provide on the door or on the door post,spring means which will cause the door to swing open a slight distanceas soon as the bolt is retracted such means being desirable indoors ofthis character which do not have handles by which the door can be openedwhen the bolt has been retracted.y

Still other objects will readily occur to those skilled in the art uponreference to the following description and the accompanying drawing inwhich Fig. 1 shows,.in plan, a lockprovided with Fig. 2 is a frontelevation view of the. same. l y. f

Fig. 3 is a side View of the same.

Fig. 4 is a more or less diagrammatic View of the construction In thedrawing, part-s which form no part of the present invention exceptinsofar. as they cooperate with the novel parts, are iiidicated by lightlines and the parts which have been added are indicated by the heavylines as will be seen. j

The door lock, as shown, is mounted upon a plate 10 which has va bent upportion 12 embedded in theedge of the door. Pivotally mounted on theplate 10 is ya rocker arm 14 adapted, when rotated, to cause the bolt 16to be retracted against theinfluence of the spring 18. The rocker arm14, the bolt 16,L and the lspring 18 are mounted between the back 10 andthe cover plate 20, the arm ro-` 7G tating upon a thimble, not shown, inwhich is a square hole.

Heretofore therehas been disposed inthe square hole a square shaftconnected to and forming'part of a door handle andit is obvious thatrotation of the handle and therefore, of its squared shaft, will causerotation of the rocker arm to the left and retraction of the bolt 16,also to `the left (Fig. 2). f

By the present invention,.the` squared shaft and the handle have been'eliminated and there is provided a crank having a squared shaft 32fitting Yin the squared hole in the rocker arm. yThe endof the crank isp'ivotally con! nected, at 34, tothe link 36, thelatter having a portion38 disposedin the eye 40 of a link 42, the latter being pivotallymountedat 44.

Adjacent the link 42 is another link ,46, pivu otally mounted at 48, anddisposed in operative engagement with thelink ypivotally mountedat 52,the link 50 having a 'portion 54 projecting at right anglesinto aposition wherein it overlies'the squared shaft 32, of thecrank 30. i l

Afplunger 56 having a push button 58 on -itshead is operativelyconnected to the por'- tion 54, the push button being on the outsideofthe door and" disposed in the aperture left Oli vacant by the removalof the commonlyv provided door handle.

It will be observed that when the push button is pressed inwardly, Fig.3, the lower end of the link 50 will move to the right, Fig. .3, theupper end of the link 42 will move to the left, Fig. 3, the lower end ofthe link 42 will move downwardly pulling with it the link 36 Which willthereupon rotate the crank 30 counterclockwise, Fig. Q, causing therocker arm 14 to retract the bolt 1G, as will be clearly understood.

If desired, the multiplyingr link 46 may be omitted together with thepivot 52, the links 42 and 50 being joined or made as one1 theconstruction shown being provided only for multiplying purposes.

It will be seen, therefore, that there has been provided a push buttoncontrol for sliding bolt locks, one which does not a ter the door or thelock commonly provided except insofar as minor substitutions areetlected.

Now having described the invention and the preferred embodiment thereof,it is to be understood that the said invention is to be limited, not tothe specific details herein set forth, but only by the scope of theclaims which follow:

That I claim is l. In combination with a sliding bolt, and a rocker armadapted to cause vsliding retraction of the bolt, the rocker arm havinga squared hole for the reception of a squared shaft which, when rotated,will cause rotax tion of the arm, mechanism to rotate the arm comprisinga crank having a squared shaftY litting in the squared hole of therocker arm, means to cause rotation of said crank, and a push buttonplunger projecting outwardly and perpendicularly from the plane of saiddoor and connected to said means and operable to cause said means torotate the crank.

2. In combination with a sliding bolt, and a rocker arm adapted to causesliding retraction of the bolt, the rocker arm having a squared hole forthe reception of a squared shaft which, when rotated will cause rotationof the arm, mechanism to rotate the arm comprising a crank having asquared shaft fitting in the squared hole of the rocker arm, meansincluding a slidable link having an end connected to said crank, and apush button plunger projecting outwardly and penpendicularly from theplane of said door and connected to said means and operable to causesaid means to rotate the crank.

3. In combination with a sliding bolt, and a rocker arm adapted tocausesliding retraction of the bolt, the rocker arm having a squaredhole for the reception of a squared shaft which when rotated, will causerotation of the arm, mechanism to rotate the arm comprising a crankhaving a squared shaft fitting in the squared hole of the rocker arm,means to cause rotation of said crank, and a push button plungerprojecting outwardly and perpendicularly from the plane of said door andconnected to said means and operable to cause said means to rotate thecrank, said means including a slidable link having an end connected tosaid crank, and an end operatively connected to said plunger.

4. In ccmbination with a sliding bolt, and a rocker arm adapted to causesliding retraction of the bolt, the rocker arm having a squared hole forthe reception of a squared shaft which, when rotated, will causerotation of the arm, mechanism to rotate the arm, comprising a crankhaving a squared shaft fitting in the squared hole of the rock-r arm,means to cause rotation of said crank, and a push button plungerprojecting outwardly and perpendicularly from the plane of said door andconnected to said means and operable to cause said means to rotate thecrank. said means including a slit able link having an end connected tosaid crank, and an end operatively connected to said plunger by apivotal linkage, one end of which is connected to said slidable link andthe other end of which is connected to said plunger.

5. In combination with a sliding` bolt, and a rocker arm adapted tocause sliding retraction of the bolt, the rocker arm having a squaredhole for the reception of a squared shaft which, when rotated, willcause rotation of the arm, mechanism to rotate the arm, comprising` acrank having a squared shaft litting in the squared hole of the rockerarm, means to cause rotation of said crank, and a push button plungerprojecting outwardly and perpendicular y from the plane of said door andconnected to said means and operable to cause said means to rotate thecrank, said means including a slidable link having an end connected tosaid crank, and an end operatively connected to said plunger by apivotal linkage, one end of which is connected to said slidable link andthe other end of which is connected to and operable by said plunger.

6. In a door lock, a bolt movable in a plane parallel to the plane ofthe door, a roll back for operating said bolt, a lever connected inoperating relation to said roll back, a second lever manually operableand movable in a plane substantially perpendicular to the plane of boltmovement, a link connecting said levers in operating relation, and apush but-ton movable in a plane. perjjiendicular to the plane of thedoor and connected to the second lever so as to operate the latter.

7. In a door lock, a. plate having an apertured bent up portion embeddedin the edge of the door, a bolt mounted on said plate to slide thereonso as to proj-ect a portion thru the bent up portion aperture, a rollback for said bolt, a crank arm. a squared shaft connecting the crankand the roll back, means to cause rotation of said crank arm, and a pushbutton plunger mounted on the door and movable in a plane perpendicularto the plane of the door and connected to said means and operable tocause the latter to rotate the crank, said means including a linkslidable in a plane parallel to the plane of the door.

8. ln a door lock, a plate having an apertured bent up portion embeddedin the edge of the door, a bolt mounted on said plate to slide thereonso as to project a portion thru the bent up portion aperture, a rollback of said bolt, a crank arm, a squared shaft connecting` the crankand the roll back, means to cause rotation of said crank arm, and a pushbutton plunger mounted on the door and movable in a plane perpendicularto the plane of the door and connected to said means and operable tocause the latter to rotate the crank, said means including a linkslidable in a plane parallel to the plane of the door, and a pivotallinkage having one end connected to said slidable link and the otherconnected to the plunger. y

9. In a door lock, a plate having an apertured bent up portion embeddedin the edge of the door, a bolt mounted on said plate to slide. thereonso as project a portion thru the bent up portion aperture, a roll backfor said bolt, a crank arm, a squared shaft connecting the crank and theroll back, means to cause rotation of said crank arm, and a push but.

ton plunger mounted on the door and movable in a plane perpendicuar tothe plane of the door and connected to said means and operable to causethe latter to rotate the crank, said Vmeans including a link slidable ina plane parallel to the plane of the door, and a pivotal linkage movablein a plane perpendicular to the plane of the door and having one endconnected to said slidable link and the other connected to the plunger.

10. In a door lock, a plate having an apertured bent up portion embeddedin the edge of the door, a bolt mounted on said plate to slide thereonso as to project a portion thru the bent up portion aperture, a rollback for said bolt, a crank arm, a squared shaft connecting the crankarm and the roll back, means to cause rotation of said crank arm, and apush button plunger projecting out- Wardly from and in a planeperpendicular to the plane of said door and connected to said means andoperable to cause the latter to rotate the crank, said means including alink lidable in a plane parallel to the plane of the oor.

11. In a door lock, a plate having an apertured bent up portion embeddedin the edge of the door, a bolt mounted on said plate to slide thereonso as to project a portion thru the bent up portion aperture, a rollback for said bolt, a crank arm, a squared shaft connecting the crankarm and the roll back, means to cause rotation of said crank arm,

` and a push button plunger projecting outwardly from and in a planeperpendicular to i l connected to said slidable link and the other Yconnected to the plunger.

12. In a door lock, a plate having an apertured bent up portion embeddedin the edge of the door, a bolt mounted on said plate to slide thereonso as to project a portion thru the bent up portion aperture, a rollback for said bolt, a crank arm, a squared shaft connecting the crankarm and the roll back, means to cause rotation of said crank arm, and apush button plunger projecting ,out- Wardly from and in a planeperpendicular to the plane of said door and connected to said means andoperable to cause the latter to ro tate the crank, said means includinga link slidable in a plane parallel to the plane of the door and apivotal linkage movable inv a plane perpendicular to the plane of thedoor and having one end connected to said slidable link and the otherconnected toy the plunger.

FRANCIS D. HARDESTY.

